Reddit, Mozilla, Gawker, and possibly many other web outfits experienced brief technical problems on Saturday evening, when software underpinning their online operations choked on the “leap second” that was added to the world’s atomic clocks.

On Saturday, at midnight Greenwich Mean Time, as June turned into July, the Earth’s official time keepers held their clocks back by a single second in order to keep them in sync with the planet’s daily rotation, and according to reports from across the web, some of the net’s fundamental software platforms — including the Linux operating system and the Java application platform — were unable to cope with the extra second.

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You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump